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Current system
02145+6631
MCA 6
55 Cas


Nearby doubles
13' : 02153+6620
TLB 3

14' : 02136+6619
TDS2167

27' : 02192+6629
HJ 1113

34' : 02194+6616
TDS2201

57' : 02154+6727
FMR 183

60' : 02130+6533
TDS2160

60' : 02182+6728
HJ 1112

64' : 02118+6529
HJ 1108

66' : 02250+6651
STF 252

70' : 02157+6740
ENG 10AB

76' : 02264+6607
TDS2249

78' : 02101+6518
GIC9008

83' : 02156+6509
TDS2181

84' : 02019+6709
CVR 37

84' : 02248+6730
NSN 526

86' : 02270+6553
AZC 138

88' : 02094+6753
TDS2138

88' : 02053+6740
STF 199AB

94' : 02207+6758
TDS2215

95' : 02156+6806
TDS2180

98' : 01588+6607
KPP 939

98' : 02155+6454
TDS2178

101' : 02291+6724
STF 262AB

102' : 01574+6630
TDS2063

105' : 02108+6450
HDS 291

108' : 01585+6545
KPP1553



Selections
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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

02145+6631 MCA 6 (55 Cas)

 
 
02h 14m 29.10s +66° 31' 28.0" P.A. 188.00 sep 0.1 mag 6.40,7.60 Sp B9V+... dist. 218.82 pc (713.79 l.y.)
 
 
Coord 2000 02145+6631 Discov num MCA   6 Comp Coord arcsec 2000 02 14 29.10 +66 31 28.0
Date first 1980 Date last 2020 Obs 43
Pa first 10 Pa last 187.9 P.A. Now (θ) 231.9°
Sep first 0.1 Sep last 0.08 Sep. Now (ρ) 0.064"
Mag pri 6.40 Mag sec 7.60 delta mag (ΔM) 1.2 Spectral class B9V+... (blue-white)
Pri motion ra -006 Sec motion ra
Pri motion dec -006 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 55 Cas Var name NSV753 Cas Constellation Cassiopeia SAO 12180
HIP 10438 Tycho2 4045-00788-1 Gaia DR2 520166963851585536 HD 13475
HR 640 GC 2661 BD BD+65 239 Flamsteed 55 Cassiopeiae
Flamsteed name 55 Cas FK5 76 Distance 218.82 Distance ly 713.79
 
 
ORBITAL ELEMENTS
 
 
Period (P)40y± 0.1 Periastron (T)2029.4y± 0.1 Semi-major axis (a)82.3m± 0.3
Eccentricity (e)0.362± 0.003 Inclination (i)24°± 1 Longitude of periastron (ω)223.3°± 4.7
Node (Ω)83.1°± 4.5 Notesn ReferenceMit2021
Equinox Last observation2020 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 79.1 0.095
2001 84.7 0.098
2002 89.9 0.101
2003 94.9 0.104
2004 99.6 0.105
2005 104.2 0.107
2006 108.7 0.108
2007 113.2 0.108
2008 117.6 0.108
2009 122.0 0.108
2010 126.5 0.107
2011 131.1 0.106
2012 135.8 0.104
2013 140.6 0.103
2014 145.7 0.100
2015 151.0 0.098
2016 156.5 0.095
2017 162.5 0.092
2018 168.8 0.089
2019 175.6 0.086
2020 182.9 0.082
2021 190.9 0.079
2022 199.7 0.075
2023 209.4 0.072
2024 220.0 0.068
2025 231.9 0.064
2026 245.2 0.061
2027 260.1 0.057
2028 276.9 0.054
2029 295.8 0.051
2030 316.3 0.050
2031 337.2 0.050
2032 356.7 0.053
2033 13.8 0.057
2034 28.2 0.063
2035 40.2 0.069
2036 50.2 0.075
2037 58.8 0.081
2038 66.3 0.086
2039 73.0 0.090
2040 79.1 0.095
2041 84.7 0.098
2042 89.9 0.101
2043 94.9 0.104
2044 99.6 0.105
2045 104.2 0.107
2046 108.7 0.108
2047 113.2 0.108
2048 117.6 0.108
2049 122.0 0.108
2050 126.5 0.107


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds02145%2B6631c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic